Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7971681 | Exhaust-gas muffler | Eberhard Bohnaker, Johannes Menzel, Helmut Zimmermann | 2011-07-05 |
| 6679234 | Manually guided implement having an internal combustion engine | Georg Maier, Ralf Tuckermann, Gunter Wolf, Philipp Neumann, Maximilian Eberhardt | 2004-01-20 |
| 6375171 | Vibration damper | Helmut Zimmermann, Horst Otterbach, Bernhard Durr, Manfred Rabis, Karl-Heinz Klopfer +2 more | 2002-04-23 |